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I don't have a Tesla, but I hear this sound in my own car, especially now that it's winter. I began hearing this after my recent car service that involved a ~real~ rear brakes replacement. When I took my car to the service guy, it was afternoon and I was no longer able to reproduce the noise.
This was driving me crazy until now! I now know it's nothing to worry about.
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> Also my gaming PC in the winter. It feels like free compute given I’m heating anyways. Totally. If it's cold and you have an idle rig, you might as well use it to run a crypto miner before reaching for an actual heater.
Actual heating systems can be better than 100% efficient, while crypto mining or cinebench or whatever is <100%
"Creaking From the Tires or Brakes" I don't have a Tesla, but I hear this sound in my own car, especially now that it's winter. I began hearing this after my recent car service that involved a ~real~ rear brakes replacement. When I took my car to the service guy, it was afternoon and I was no longer able to reproduce the noise. This was driving me crazy until now! I now know it's nothing to worry about.
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I hope legislation gets enacted that will make it illegal to blast artificial "exhaust" noises from EVs. Not like cops will actually enforce it, but one can still dream...
All the blind people will definitely not want that... I can see, and yet I've been scared more than once by an unusually quiet car behind me.
My previous car, a 2014 Model S, had my favorite acceleration sound of any car: a guttural whine in a perfect third, ascending as speed increased, and louder as load increased. It's the only thing I miss after upgrading to a Model 3. Well, that and the ability to do burnouts. Confused quite a few people doing that.
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I have a relatively analogue car (Subaru BRZ) and there are times when you shut it off on a warm day and then randomly about ten mins later a radiator fan kicks on. I guess it's to help cool down but I don't remember exactly what the manual says. Basically it's cool how cars do things largely on their own sometimes to stay within certain parameters.
My Kawasaki Ninja 500 will do the same thing, and it's a bike with very old tech. It is air-cooled, so it's probably a safety feature. Still cool.
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I have a relatively analogue car (Subaru BRZ) and there are times when you shut it off on a warm day and then randomly about ten mins later a radiator fan kicks on. I guess it's to help cool down but I don't remember exactly what the manual says. Basically it's cool how cars do things largely on their own sometimes to stay within certain parameters.
The fan is triggered by a relay, triggered by the ECU, which uses coolant sensors (the thermostat sensor that is iirc not always the mechanical thermostat) to adjust when to cool the radiator. That temp is much higher than the ambient air will ever get, so if the fan comes on after the car is turned off then either it was just about at the temp that would have turned on the fan, or something could be slowly going wro…
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I always thought about this growing up. How the engine’s heat is used directly to heat the cabin and there is no heater. Also my gaming PC in the winter. It feels like free compute given I’m heating anyways.
A gasoline based ICE is so incredibly inefficient it needs to shed heat or it would melt down. It makes more heat than that it makes motive power (the thing it is designed to do...). A 50 KW engine makes 200 KW(!!) of heat (at full throttle). Most of that heat energy exits the system through the exhaust gases but there is plenty that gets stuck in the body of the engine and you need to remove it from there somehow be…
Sure.. but try running that same engine when it gets too cold, which is why "block heaters" exist and get used in certain parts of the world. The operating temperature of the engine _is_ part of the design criteria.